Back on topic and my answer is no. I always had my trainees do most of their shooting with 22's till they get to a certain level of competence and then only enough centerfire loads to get a handshake acquaintance with the exercise and then back to 22.

Part of it has always been cost because I don't have any rich shooters and part of it is I stress marksmanship first foremost and always right after safety, no chest thumping magnumitis in my classes because my shooters tend to be new shooters and often women shooters.

Haven't had any classes since last fall so the program wasn't affected but I have a class starting next Saturday and fortunately I have a good supply of 22 on hand.

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Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.
--Daniel Webster--